zachholman.com

.com crawl

First seen 2026-04-11 · Last seen 2026-05-19 · ok HTTP/1.1 200 1511 ms crawled 2026-05-19

US · 172.67.128.37 · AS13335 Cloudflare, Inc.

Reputation 89/100 weak security headers dmarc monitor-only

sector other type homepage

HTML metadata

Title
Zach Holman
Description
Written pieces, talks, and other bits by Zach Holman.
Language
en
Feeds

Open Graph

title
Zach Holman

Technology

CDN
Cloudflare
Fonts
  • Google Fonts

Third-party hosts loaded (2)

  • fonts.googleapis.com×1
  • kit.fontawesome.com×1

Social

Registration

Registrar
Cloudflare, Inc.
Created
2006-06-13
Expires
2028-06-13 754 days left
Updated
2025-05-02
Name servers
  • dave.ns.cloudflare.com
  • mona.ns.cloudflare.com

DNS records live

NS
  • dave.ns.cloudflare.com
  • mona.ns.cloudflare.com
MX
Show 7 MX records
  • 1 aspmx.l.google.com
  • 10 aspmx2.googlemail.com
  • 10 aspmx3.googlemail.com
  • 10 aspmx4.googlemail.com
  • 10 aspmx5.googlemail.com
  • 5 alt1.aspmx.l.google.com
  • 5 alt2.aspmx.l.google.com

Email authentication partial

SPF
v=spf1 include:_spf.google.com ~all
softfail (~all)
DMARC
v=DMARC1; p=none
policy: none (monitoring only)
DKIM
  • google: v=DKIM1; k=rsa; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAs1okpmCBsHISaRvBIuBTQ/hssGjGSAiE8cOK+CWOL/wcfRoLK39d9g40hwz45OVmzWtpEF8HfJu3ml…
selectors probed

Certificate (current)

WE1
from 2026-04-03 to 2026-07-02
Expires in 42 days

HTTP security headers

Header hygiene 30/100 Checked live page: https://zachholman.com/

findings
  • missing HSTS
  • missing Content Security Policy
  • missing frame protection
  • missing content type protection
  • missing Referrer Policy
  • missing Permissions Policy

Links to (9)

Linked from (3)